Georgia Department of Transportation district construction engineer Shun Pringle said backups are expected in Douglas, Newton and Rockdale counties as crews work to complete some major road projects.

"Please do what you can to avoid these project areas. Plan ahead, look for alternate routes or call 511," Pringle said in a release. "We want everyone to enjoy the weekend, and I'm sure that doesn't include sitting in traffic backups."

Several events may also cause delays on Atlanta's roads. From 7 a.m. to 2 p.m. Saturday, State Route 9 near Lenox Square and Phipps Plaza will be closed for the Susan G. Komen Race for the Cure. Pringle said traffic in the area will be detoured.

(WXIA) -- Drivers who plan to use Interstate 20 this weekend are encouraged to find alternate routes.

The Georgia Department of Transportation will work on several major projects this weekend on the interstate that cuts across Atlanta.

"We have three projects with significant lane closures on I-20 this weekend," GDOT District Construction Engineer Shun Pringle said in a release. "We are expecting long delays, particularly in Douglas and Rockdale counties, during the daytime hours on Saturday and Sunday."

This weekend's road projects, many of which come with heavy delays, include:

"We are doing our best to limit daytime lane closures if possible in order to minimize the inconvenience to motorists," Georgia Department of Transportation engineer Shun Pringle said. "However, some work just has to be done during the day."

One brief closure will be the loop ramp from Northside Drive north to Interstate 75 south in northwest Atlanta. It will be shut down Saturday from 8:30 a.m. to 9:30 a.m. so crews can repair a guardrail. Drivers are asked to use Howell Mill Road to access I-75 south during that hour.

(WXIA) -- Only one major daytime closure will affect drivers on Atlanta's highways this weekend.

The leftmost lane on I-285 north will be closed between I-20 and Ga. 400 on Saturday from 9 a.m. to 4 p.m. Crews must close the lane to remove a barrier wall.

"With only that one closure on I-285, everyone should have an easier time getting to their destination," Georgia Department of Transportation District Construction Engineer Shun Pringle said in a statement.

Nighttime closures will still occur in a handful of locations.

Three right lanes of I-20 west between Wesley Chapel and Candler roads will be closed for striping every night from 8 p.m. to 6 a.m.

Two left lanes of I-285 north between I-20 and Peachtree Dunwoody Road will be closed nightly from 9 p.m. to 5 a.m. Crews will work to replace a barrier wall in that location.

(WXIA) -- Crews will continue working on the usual road projects this weekend -- as long as the weather cooperates.

The Georgia Department of Transportation is also warning drivers of heavier traffic than normal, due to school systems beginning their spring breaks.

"We apologize for the delays, and there will be big delays," GDOT District Construction Engineer Shun Pringle said in a release. "We understand that this is a spring break for some folks, but so are the next three or four weekends."

Weekend work begins at 10 p.m. Friday on the Interstate 85/Georgia 400 Interchange. Four left lanes of I-85 south from a half-mile north of Clairmont Road to North Druid Hills Road will be closed between midnight and 7 a.m. Saturday and Sunday, and from midnight to 5 a.m. Monday.

Pringle said all lanes will reopen Monday at 5 a.m. The closures are due to overhead sign replacements.